673939877 has 8 divisors (see below), whose sum is σ = 726689880. Its totient is φ = 621319680.

The previous prime is 673939843. The next prime is 673939883. The reversal of 673939877 is 778939376.

It can be written as a sum of positive squares in 4 ways, for example, as 70795396 + 603144481 = 8414^2 + 24559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673939877 - 2⁸ = 673939621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673939807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21524 + ... + 42557.

It is an arithmetic number, because the mean of its divisors is an integer number (90836235).

Almost surely, 2^673939877 is an apocalyptic number.

It is an amenable number.

673939877 is a deficient number, since it is larger than the sum of its proper divisors (52750003).

673939877 is a wasteful number, since it uses less digits than its factorization.

673939877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64903.

The product of its digits is 12002256, while the sum is 59.

The square root of 673939877 is about 25960.3520199554. The cubic root of 673939877 is about 876.7458484737.

The spelling of 673939877 in words is "six hundred seventy-three million, nine hundred thirty-nine thousand, eight hundred seventy-seven".